Switch to new options handling.

This changes lots of stuff, let me know if it broke anything.

Comments:

- We use a local hacked version of GetOpt that allows long forms of commands to start with a single dash. This breaks other parts of GetOpt. For example, arguments to short options now require a =, and does not allo pace after the option character.

- The new command parsing is currently only used for the program command line, pragmas and the arguments for the 'i' shell command.

- I made a quick hack for the options for showTerm, which currently makes it impossible to use the print style flags for cc. This will be replaced by a facility for parsing command-specific options.

- The verbosity handling is broken in some places. I will fix that in a later patch.

src-3.0/GF/GFCC/OptimizeGFCC.hs

@@ -13,7 +13,10 @@ import qualified Data.Map as Map
 -- suffix analysis followed by common subexpression elimination
 
 optGFCC :: GFCC -> GFCC
-optGFCC gfcc = gfcc {
+optGFCC = cseOptimize . suffixOptimize
+
+suffixOptimize :: GFCC -> GFCC
+suffixOptimize gfcc = gfcc {
   concretes = Map.map opt (concretes gfcc)
   }
  where 
@@ -23,6 +26,11 @@ optGFCC gfcc = gfcc {
     printnames = Map.map optTerm (printnames cnc)
   }
 
+cseOptimize :: GFCC -> GFCC
+cseOptimize gfcc = gfcc {
+  concretes = Map.map subex (concretes gfcc)
+  }
+
 -- analyse word form lists into prefix + suffixes
 -- suffix sets can later be shared by subex elim